What lies hidden behind Quirk, a mysterious product that has suddenly soared to the top of the list of must-haves eagerly sought after by the inhabitants of the City? There seems to be no explanation for the phenomenon: no-one knows what Quirk is, nor where its sold. And yet, only a few days after the first outbreak, a new attack of quirk-mania seizes hold of the City. Legs and May go in search of the three scientists who were working on the development of technologies for subliminal advertising campaigns, when Quirk suddenly puts in another appearance. And this time the name is accompanied by a strange symbol